The absolute value function graphs the non-negative values of the argument inside the function symbol. The purpose of this application is to learn the difference of placing a coeffiecient outside of the function versus placing it inside the function.
Use the mouse to move the a-slider from -5 to 5 and make notations of the position of the lines that are displayed. Once you have written your observations, un-check the f(x) box and check the g(x) box.
Use the mouse to move the a-slider from -5 to 5 and make notations of the position of the lines that are displayed. Once you have written these observations, explain what was different between the results.
What causes the differences between f(x) and g(x)?

This applet can be used by teachers in a demonstration mode in the classroom or teachers can have students load it on their own computers as a worksheet to be completed for a grade.